Lock



J. G. MALOUF Oct. 4,1927.

LOCK

Filed July 18. 1925 2 Sheets-Shegtl juviuvru? W 3,

lirramvsy Oct.

J. G. MALOU'F LOCK Filed July 18, 1925 2 Sheets-Sheet 2 Patented Dot. 4,1927.

JiIBna'r e. MALOUF, or

LA' sans; NEW-YORK.

I Loon.

Application filed July is,

My invention relates in general to locks, and in particular to apermutation. or combination lock.

Some of the objects of my invention have been to provide a lock of thisnature which shall be durable in construction, and inexensive tomanufacture. i v

Another object has been to provide. a lock which, may have itscombination easily changed without disassembling.

Moreover, my device is provided with means whereby it shall beimpossible for an unauthorized person to detect the combination byfeeling. h

Furthermore, my device is of such a nature that it is susceptible of anumber of various uses.

The above objects and advantages have been accomplished by the deviceshown in the accompanying drawings, of which Fig. 1 is an enlarged,longitudinal, sectional elevation of my complete device.

Fig. 2 is a transverse, sectional elevation thereof taken on line 22 ofFig.v 1 and looking in the direction indicated by the arrows.

Fig. 8 is a similar sectional view taken on line 2-2 of Fig. 1,.butlooking in a dlrection opposite to that indicated by the arrows.

Fig. a is a transverse, sectional elevation taken on line 14 of Fig. 1..v

Fig. 5 is an enlarged sectionalview of one of the lock discs. I

Fig. 6 is a similar view of one of the tumblers. v

Fig. 7 isa rear face elevation of the device, showing it adapted for useas a keyhole lock or guard. g

Fig. 8 is a side elevation of the device showing itadapted for use as apadlock.

Referring to the drawings, 10 represents the casing of my device whichis cup-shaped. Mounted within the interior of the casing 10 isaplurality of tumblers, each, comprising a lock disc 11 anda tumbler disc12, corresponding in number to the number of'combinations desired. Inthe drawings, but three of such lock discs are: shown,.it' being obviousthat a greater or lesser numberinay be provided if desired. g

The tumbler. disolfZv which is. provided for each; of. the lock discs 11is... mounted within a recess- 13 provided in. eachiof. the lock discs.Each; of the tumblerfdiscsz. is carried by. the flanges 14: and 15',provided 1925.. sem in. 44,620.

on a] tumbler hub. 16, The. pressure of. the flanges 14 and 15.againstthe tumbler disc 12 is such that will firmly; hold the disc inposition, but whenlconsiderableforce is applied, thedisc may be made. tomove and lo tate about-thehub, whereby the combination 1 may beeasilyand quickly changed. The

hub 16 is providedfwith annular-extensions 17 and 1:8,,whi ch engage.with bearings-pertures'; 191 formed in thelock discs. By reference toFiguresl and 6,.it will be seen that the annular. extension 17' of onehub 1.6 and the annular extension 1 8:0f the adjacent hub are .111contact with each other and; that the aperture 19v offthe lock disc 11-'forms a bearing for the two annular extensions of. adj acenthubs. Eachhub 16 is provided with a central bore 21andwithanannular recess orcounterbore: 22. A. longitudinal groove or keyway 23 is provided in the.portion of the hub which is providedwith the bore/21 for purposes. to.be hereinafterdescribed. Theflange 15 ofthejhub is: providedon its perphery with a number of indentations 20. These indentations areengageable with a spring 245 which is preferably held by the lock disc-ll. The spring is so designed. that it will engage with the notches ofthe flange and serve to temporarily hold it i'n any set position. Eachof. thetumbler discsy12 is provided with a notch in its periphery forpurposesto be hereinafter described.

Av cover25 is provided for thebody 10 and is preferably set into arecess 26 and against. a shoulder 27 formedtherein. The

cover 'may be. secured in position by any suitable, meansgbut since thelock discs 11 must be prevented from rotation, it is con.- venient tosecure the cover in position; by means of ainmn'ber of rivet's28' whichare passed through the cover, the lock discs and the bottom of thecasing 10,. The cover is providedwith a hub 29"havinga bearing for tlieoperating. which is slidable andf-rotatalile. within. thej'hub; I Thestud is provided with: an operating. knob 31 having an indexffin'ger32'. Thehub isprovided with av number ofilongitudinal] scores "or marks33,, corresponding in.1 1um lier to; and registering. with, the, number.notches 20 provided. in, the; flange of the." hub 116. Numerals. 3.4:are preferablyjprovided for the scores 33andlthesejare stamped upon the;face. of the cover i 25. Y The. inner end of the operating. stud; 301's" engageable withthe bore-.2 21;. of. each. tumbler hub 16', and a.

is carried by the end of the operating stud and radially arranged so asto engage the grooves 23 formed in the tumbler hubs. Since the recess 22in each of the tumbler hubs is larger than the diameter described by thepin 36, the pin will be free to move around in the recess withoutcausing the rotation of the tumbler hub. WVhen, however, the pin ismoved in the groove 23, the tumbler hub 16 may then be rotated by therotation of the operating stud 30. The operating stud 30 is providedwith a number of annular semi-circular grooves 37, equal in number tothe number of tumbler discs. A spring 38 is carried by the hub 29 of thecover, and its end 39 passes through a slot formed in the hub, wherebyit is engageable with any one of the grooves 37 when such groove ismoved into registerable position therewith. The grooves are so arrangedthat the spring 38 "will engage with one of them when the pin 36 is inengagement with the groove 230i either of the hubs. This forms aflexible stop for the longitudinal movement of the operating stud 30when the lock is being manipulated.

A look bar 41, preferably of rectangular cross-section, is passedthrough suitable slots formed in the cover 25, the edges of the lockdiscs 11, and through the bottom of the easing 10. This lock bar isprovided with a number of notches 4-2 in its edge which is adjacent thetumbler discs, and with which the tumbler discs are engageable. As shownin Fig. 1, the tumbler discs lie in these slots and'thus lock thedevice. When, however, the notches of each of the discs are brought inregistering position with the lock bar, the bar may be freely slid outof the lock.

Arranged in a recess of the cover 25 is a floating disc 6L6.- This discis mounted upon the operating stud 30 and is provided with a key 47extending inwardly from its central aperture and engaging a keyway 48,provided in the operating stud, whereby this discwill be rotated whenthe stud is rotated. A notch'35 is provided in the periphery of thisdisc like the notches 35 of 3 the other discs. M

hen my device is locked and it is desired to unlock the same, thecombination being known, the operating stud 30 is moved axially so as topreferably engage the hubs in succession. The first position will bethat shown in Fig. 1 where the pin 36 of the operating stud is inengagement with the groove 23 of the first tumbler hub. This hub is thenrotated until the index finger is brought opposite the numeral of thecombination corresponding with the first tumbler, after which theoperating stud is pushed inwardly until the pin 36is out of engagementwith thejgroovef 23 of the first hub. The stud, While being rotated, isnow urged inwardly against the next succeeding tumbler hub, whereuponthe pin 36 will be brought into engagement with the groove 23 of thenext succeeding tumbler hub. The axial movement of the stud is thencontinued until the end 39 of the spring 38 engages with the middlegroove 37 on the stud, which will act as a temporary stop. When theoperatingstud is in this position, it is connected with the secondtumbler hub 16 and the same may now be rotated until the index pin isopposite the number corresponding to this tumbler. The operating stud isthen moved axially, as just above described, until the pin 36 engageswith the groove 23 of the last tumbler hub and until the spring 38engages with the last groove 37 on the stud, whereupon the last tumblermay be rotated to a predetermined number. The operating stud is nowmoved axially to a position where the pin 36 will lie in the recess 22of either of the tumbler hubs, and the floating disc 16 is then rotatedto bring its slot 35 into registering position with the lock bar 11,whereupon the same will be released and may be withdrawn. The slot 4L9,formed in the lock bar for the floating disc 46, is narrower than theslots 42 for the tumbler discs, and the reason for providing thefloating disc is that the notches 35 of the tumbler discs 12 may not befelt by an unauthorized person as they are being moved past the lockbar.

'My device is of such a nature that it is applicable to various uses. InFig' 1, I have shown it equipped for use as a keyhole guard or lock.WVhen so used, a lock pin 51 is carried near the top of the casing, andthis look pin provided with a detent pin 52 extending at right angleswith the axis of the lock pin and arranged at an angle with thediametrical center line of the device. This lock pin isarrangedimmediately above the lock bar 41, and when the device is usedas a keyhole guard, the lock pin is first in serted in the round part ofthe key hole, whereupon the entire device is slightly rotated .so as tobring the lock bar in registering position with the slotted part of thekey hole. The lock bar is then inserted in the slotted part of thekeyhole and the device locked by rotating the tumbler discs 12 tovarious positions. By reference to Fig. 7, where the keyhole is shown indotted lines, it will be seen that the detent pin 51 will prevent thedevice from being withdrawn from the. keyhole. W V

Another use of deviceis that of a pad look, as shown in Fig. 8. When soused, a hasp 53 is provided, which is formed with a flattened end 54-,which takes the place of the lock bar 4-1, and with an end 55 whichpasses through an opening 56 formed in the body 10 and arrangedpreferably at a point diametrically opposite the lock bar;

It is obvious that when the lock bar 41 or the hasp 53 is inserted inthe device, the tumblers are set by being rotated, as herein beforedescribed, to various positions.

Obviously, some modifications of the details herein shown and describedmay be made without departing from the spirit of my invention or thescope of the appended claims, and I do not, therefore, wish to belimited to the exact embodiment of the form herein shown and described,the form herein shown being merely a preferred form.

Iaving thus described my invention, what I claim is:

1. A lock comprising a body, a plurality of lock discs non-rotatablymounted within the body, each lock disc having a central bore and aconcentric recess, a lock bar passing through the body and the lockdiscs and formed with a plurality of notches, a tumbler hub mounted inthe recess of each lock disc, each of the discs being rotatable througha complete circle without rotating any of the other discs, each tumblerhub having an annular extension at each side for engagement with thebores of adjacent lock discs, a tumbler disc carried by each tumblerhub, and an operating stud engage able with the tumbler hubs forrotating the same independently and one at a time.

2. A lock comprising a lock bar, a plurality of circular-shaped tumblermember-sin co-operative relation with the lock bar, each tumbler membercomprising a tumbler hub, formed with a central bore and recess, thebore having a groove extending therefrom, and a tumbler disc adjustablycarried by the hub and formed with a notch for engagement with the lockbar, a floating disc engageable with the lock bar, and an operating studhaving a pin engageable with the recesses and grooves of the hubs.

3. A lock comprising a body, a plurality ot lock discs non-rotatablymounted within the body, a lock bar carried by the body and passingthrough the lock discs, the lock bar having a plurality of notches, atumbler. hub rotatably carried by each lock disc, each tumbler hubhaving a notched flange, a spring carried by each lock disc andengageable with the notches of the hub flange, a tumbler disc carried byeach tumbler hub and in co-operative relation with the lock bar, and anoperating stud for rotating the tumbler hubs independently and one at atime.

at. A lock comprising a lock bar formed with a plurality of notches, aplurality of circular tumblers engageable with the notches of the lockbar, each of the tumblers being rotatable through a complete circlewithout rotating anyvof the other tumblers, and an operating stud forindividually operating either of the tumblers independently of theothers, the lock bar being operated independently of the operating stud.

5. A lock comprising a detachably mounted lock bar, a plurality ofcircular tumblers in co-operative relation with the lock bar,

each of the tumblers being rotatable through a complete circle withoutrotating any of the other tumblers, and an operating stud for rotatingthe tumblers one at a time.

6. A lock comprising a lock bar, a plurality of circular tumblers inco-operative relation with the lock bar, each of the tumblers beingrotatable through a complete circle without rotating any of the othertumblers, and an operating stud for rotating the tumblers one at a time,the stud being operable in a plane parallel with the path of movement ofthe lock bar.

7. A lock comprising a lock bar, a plurality of circular tumblers inco-operative relation with the lock bar, each of the tumblers beingrotatable through a complete circle without rotating any of the othertumblers, and an operating stud for rotating the rotatable through acomplete circle without rotating any of the other tumblers, a floatingdisc engageable with the lock bar, and

an operating stud for individually operating.

either of the tumblers independently of the others.

10. A lock comprising a lock bar, a plurality of circular tumblers inco-operative relation with the lock bar, each of the tumblers beingrotatable through a complete circle without rotating any of the othertumblers, each tumbler comprising atumbler hub and a tumbler discadjustably carried by the tumbler hub, the lock bar being formed with aplurality of notches for engagement with the tumblers, and an operatingstud for operating the tumbler hubs independently of each other and oneat a time.

In testimony whereof, I have hereunto signed my'name.

. JUBERT G. MALOTTF lUU

